Measurement of Youngs modulus of cementitious materials using an electro-optic holographic technique

The electro-optic holographic technique has already been used to determine Youngʹs dynamic modulus in homogeneous materials based on the resonance frequency of the analysed samples. This paper shows a modification of the determination method of this frequency that speeds up this process thus obtaining Youngʹs modulus. Based on the visualisation of real time fringes drawn by exciting the rods at the 1000-10,000Hz range, the proposed method allows us to determine their resonance frequencies.